| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 59.3 | 62.4 | 65.1 | 71.3 | 80.0 | 89.1 | 96.5 | 95.5 | 89.1 | 79.6 | 66.5 | 59.0 | 76.1 |
| Highest Mean Max. Temperature (F) | 67.7 | 69.3 | 74.9 | 81.3 | 85.5 | 94.8 | 100.1 | 99.7 | 93.4 | 88.8 | 74.1 | 67.6 | 79.5 |
| Year Highest Occurred | 1986 | 1988 | 1972 | 1989 | 1984 | 1981 | 1988 | 1967 | 1974 | 1988 | 1989 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 52.5 | 53.8 | 57.6 | 57.8 | 70.0 | 82.9 | 92.7 | 90.6 | 81.4 | 73.3 | 61.0 | 50.2 | 73.2 |
| Year Lowest Occurred | 1979 | 1969 | 1973 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1972 | 1971 | 1982 |
| Mean Temperature (F) | 45.9 | 48.8 | 51.5 | 57.1 | 65.4 | 73.9 | 80.7 | 79.6 | 73.4 | 63.9 | 52.2 | 45.6 | 61.5 |
| Highest Mean Temperature (F) | 53.6 | 53.4 | 58.4 | 65.4 | 70.2 | 78.7 | 85.1 | 84.0 | 78.1 | 69.3 | 57.3 | 51.3 | 64.0 |
| Year Highest Occurred | 1986 | 1968 | 1972 | 1987 | 1984 | 1981 | 1990 | 1967 | 1984 | 1987 | 1976 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 41.9 | 43.4 | 46.2 | 46.2 | 57.9 | 68.8 | 76.0 | 74.7 | 67.8 | 59.1 | 48.1 | 39.9 | 59.4 |
| Year Lowest Occurred | 1982 | 1969 | 1973 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1972 | 1971 | 1982 |
| Mean Min. Temperature (F) | 32.3 | 35.1 | 37.9 | 42.9 | 50.7 | 58.6 | 64.9 | 63.6 | 57.6 | 48.1 | 37.9 | 32.1 | 46.8 |
| Highest Mean Min. Temperature (F) | 39.5 | 41.4 | 43.8 | 51.3 | 55.1 | 63.2 | 70.5 | 68.2 | 63.7 | 55.0 | 42.7 | 36.3 | 48.9 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1987 | 1987 | 1990 | 1967 | 1984 | 1987 | 1967 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 27.9 | 29.3 | 32.8 | 34.6 | 45.7 | 53.3 | 59.2 | 58.7 | 52.4 | 41.6 | 32.7 | 27.6 | 45.0 |
| Year Lowest Occurred | 1964 | 1964 | 1977 | 1967 | 1977 | 1980 | 1983 | 1976 | 1965 | 1971 | 1990 | 1990 | 1971 |
| Mean Precipitation (in.) | 2.80 | 2.35 | 2.18 | 0.87 | 0.23 | 0.13 | 0.16 | 0.29 | 0.46 | 0.36 | 1.53 | 2.11 | 13.47 |
| Highest Precipitation (in.) | 11.67 | 7.62 | 6.41 | 3.29 | 0.94 | 1.18 | 2.31 | 2.50 | 3.72 | 1.90 | 4.94 | 11.80 | 28.27 |
| Year Highest Occurred | 1969 | 1969 | 1983 | 1965 | 1987 | 1977 | 1984 | 1961 | 1976 | 1963 | 1982 | 1966 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.31 |
| Year Lowest Occurred | 1984 | 1961 | 1972 | 1985 | 1985 | 1989 | 1990 | 1989 | 1988 | 1990 | 1980 | 1989 | 1990 |
| Heating Degree Days (F) | 592. | 454. | 423. | 288. | 88. | 12. | 0. | 0. | 11. | 110. | 384. | 601. | 2963. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 51. | 101. | 279. | 487. | 453. | 263. | 76. | 0. | 0. | 1710. |